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Groundbreaking for First Battery Storage Project in North Rhine-Westphalia – 500 MW of Additional Projects Planned in Westphalia

  • 8 hours ago
  • 2 min read

With an investment of around €10 million in Ennigerloh, green flexibility is marking the start of its first battery storage project in North Rhine-Westphalia. A 10 MW battery storage system with a capacity of 25 MWh is being built directly next to the substation. And more are to follow: within the vicinity of green flexibility’s Münster office alone, more than 500 MW of additional battery storage projects are already in the final stages of development.


Kempten/Ennigerloh, October 16, 2025


green flexibility is marking another milestone for the energy transition with a new battery storage project in the Ostmünsterland region. A 10 MW battery storage system with a capacity of 25 MWh is being built directly next to the substation in Ennigerloh. The battery containers are scheduled for delivery as early as December, with commissioning planned for April/May 2026.


As the amount of electricity generated from solar PV and wind continues to increase, so does the need for flexible storage solutions that can absorb surplus electricity at scale and feed it back into the grid when needed. The Ennigerloh battery storage system is designed to do exactly this by reducing peak loads and strengthening the stability of the regional grid. By strategically storing and discharging renewable electricity, it will make an important contribution to flexibility and security of supply in the power system.


“We are grateful to the municipality for handling the construction-related matters so quickly and efficiently,” said Bernd Arkenau, Managing Director of green flexibility, at the groundbreaking ceremony. “Ennigerloh is a strong example of how municipalities and battery storage operators can work together to drive the energy transition forward.”

The City of Ennigerloh also welcomes the project: “Our city has always embraced renewable energy — through wind power and solar PV. For us, the battery storage system is the next logical step,” explained Deputy Mayor Michael Topmöller.

With the Ennigerloh project, green flexibility is developing its first battery storage project in North Rhine-Westphalia. At the same time, the company is already planning numerous additional storage projects in the region. Within the vicinity of its Münster office alone, more than 500 MW of projects are approaching implementation, including a 100 MW utility-scale project scheduled to break ground in 2026.


green flexibility develops and operates utility-scale battery storage systems across Germany, working closely with municipalities and grid operators.


 

 
 
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